The provided diagram depicts how fossils-which are located beneath the cliff-were exposed as a result of coastal erosion.
Overall, the process for exposure of fossils consisted of three linear stages, which began with the wave attack from high tides and ended with the exposure of fossils in danger zone of cliff.
In detail, the high tide of the ocean created waves, which caused coastal erosion on wave attack zone of cliff. Likewise, low tide of ocean caused coastal erosion near the slopping rocky platform, causing a huge holoe in bottom of the cliff.
The area where the hole is formed was coined as the danger zone by experts, which hid the fossils that was yet to be found. The high tide caused the cliff to retreat by a huge amount which caused the fossils in the danger zone to be revealed. This led to the discovery of fossils which was then studied by researchers for scientific purpose.